Nerve
Suprascapular nerve
Supraspinatus and infraspinatus
High-yield
Passes under the superior transverse scapular ligament; entrapment weakens abduction initiation and lateral rotation.
Overview
A branch of the upper trunk that passes through the suprascapular notch to supply two rotator cuff muscles.
Learning this group? Read How to learn the brachial plexus and The rotator cuff muscles, explained.
Reference facts
- Roots
- C5, C6 (upper trunk)
- Course
- Runs through the suprascapular notch (beneath the transverse scapular ligament), then around the spinoglenoid notch to the infraspinous fossa
- Motor
- Supraspinatus and infraspinatus
- Sensory
- Glenohumeral and acromioclavicular joints (articular)
Frequently asked questions
What are the roots of the suprascapular nerve?
The suprascapular nerve arises from C5, C6 (upper trunk).
What muscles does the suprascapular nerve supply?
The suprascapular nerve supplies the supraspinatus and infraspinatus.
What is the sensory distribution of the suprascapular nerve?
The suprascapular nerve carries sensation from the glenohumeral and acromioclavicular joints (articular).
What is the course of the suprascapular nerve?
Runs through the suprascapular notch (beneath the transverse scapular ligament), then around the spinoglenoid notch to the infraspinous fossa.